The machine driver try to use GPIO15 of twl4030 for HS MUX which supposed to select between TWL's HSOL/R and tlv320aic3254's HPL/R. The TWL's GPIO allocated dynamically so the (OMAP_MAX_GPIO_LINES + 15) is no longer valid GPIO number causing a kernel crash due to BUG_ON() Also the current machine driver supports only TWL audio currently: there is no need to control the GPIO.

Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- Hi Liam, Mark,

I just got one zoom2 board and this patch is needed to get the board booting when audio is enabled. For 3.9 I will convert the machine driver to platform device/driver, but to get 3.8 kernel booting this patch is needed.

Regards, Peter

sound/soc/omap/zoom2.c | 7 ------- 1 file changed, 7 deletions(-)

diff --git a/sound/soc/omap/zoom2.c b/sound/soc/omap/zoom2.c index 1ff6bb9..771bff2 100644 --- a/sound/soc/omap/zoom2.c +++ b/sound/soc/omap/zoom2.c @@ -37,8 +37,6 @@ #include "omap-mcbsp.h" #include "omap-pcm.h"

-#define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15) - static int zoom2_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -187,9 +185,6 @@ static int __init zoom2_soc_init(void) if (ret) goto err1;

- BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0); - gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0); - return 0;

err1: @@ -202,8 +197,6 @@ module_init(zoom2_soc_init);

static void __exit zoom2_soc_exit(void) { - gpio_free(ZOOM2_HEADSET_MUX_GPIO); - platform_device_unregister(zoom2_snd_device); } module_exit(zoom2_soc_exit);